摘要
于2013~2014年冬季枯水季节,先后在鄱阳湖重点水域进行了33天岸上定点观察、10天水上流动考察和9天岸上流动考察,调查了5个水域长江江豚种群数量、分布情况及其行为特征。结果表明：2013~2014年枯水季节,星子水域长江江豚种群估计值分别为29和37头,龙口水域分别为47和0头;2014年枯水季节,康山水域长江江豚种群估计值为80头,湖口至渚溪河口水域为206头,三山至瓢山南水域为80头。长江江豚主要集中分布在鄱阳湖的鞋山、屏峰、马鞍山、火焰山、老爷庙、梅溪嘴、康山新洲、三山、棠荫及其附近水域;江豚个体行为特征分析表明,摄食行为占75.97%,抚幼行为占7.56%、玩耍行为占8.91%、逃避行为占6.01%,休息行为占1.55%。
By conducting 33 days of stationary observations,9days of moving observations on shore and 10 days of moving observations on the water,the population,distribution and behavior of Yangtze finless porpoise（Neophocaena asiaeorientalis asiaeorientalis）during the low water period at Poyang Lake from 2013 to 2014were reported.The population for 2013 and 2014were estimated to be 29 and 37respectively in Xingzi water and 47 and 0respectively in Lankou water.Also,the population for 2014 were estimated to be80 in Kangshan water,206 in waters from Hukou to Zhexi,and 80 in waters from Sanshan to south of Piaoshan.As shown by these data,the finless porpoises are mainly distributed in Xieshan,Pingfeng,Maanshan,Laoyemiao,Meixi,Kangshan,Sanshan,Tangyin waters in Poyang Lake.As for the finless propoises＇ behavior,it showed that feeding behavior accounts for 75.97%,care-giving behavior accounts for 7.56%,playing behavior accounts for 8.91%,escaping behavior accounts for 6.01%,and resting behavior accounts for 1.55%.
出处
《南昌大学学报（理科版）》
CAS
北大核心
2016年第3期276-280,共5页
Journal of Nanchang University(Natural Science)
基金
江西省科技厅重大专项(20114ABG01100)
关键词
长江江豚
种群数量
行为特征
分布情况
鄱阳湖
Neophocaena asiaeorientalis asiaeorientalis
population
behavioral characteristics
distributed
Poyang Lake
